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机械行业中热处理的能耗约占整个能耗的1/4左右,而回火是热处理工艺中周期长、能耗多的工序之一,因此采取回火节能施措很重要。早在60年代初就试验和试用在淬火炉中快速加热回火的方法,但由于当时对其理论依据认识不足,对其加热系数的变化规律尚未掌握,因而未能在生产中得到应用和发展。实际上这是一种很好的节能施措,同时对中小型企业也是一项很方便适用的工艺。在当前能源短缺的情况下,对这种不需要专用回火炉而利用淬火炉的工作间隙进行回火的方法,很
The energy consumption of heat treatment in the machinery industry accounts for about 1/4 of the total energy consumption. However, tempering is one of the processes with long period and high energy consumption in the heat treatment process, so it is very important to adopt tempering energy conservation measures. As early as the early 1960s, the method of rapid heating and tempering in a quenching furnace was tried and tested. However, due to the lack of understanding of its theoretical basis at that time, the laws governing the variation of its heating coefficient have not yet been mastered and have not been applied and developed in production . In fact this is a very good energy-saving measures, but also for small and medium enterprises is a very convenient and applicable technology. In the current case of energy shortages, this does not require special tempering furnace and the use of quenching furnace work space tempering method is very